diff --git a/ext/index/script.js b/ext/index/script.js
index b446f72b..605d32d5 100644
--- a/ext/index/script.js
+++ b/ext/index/script.js
@@ -1,14 +1,20 @@
 $(function() {
 	var blocked_tags = ($.cookie("blocked-tags") || "").split(" ");
+	var needs_refresh = false;
 	for(i in blocked_tags) {
 		var tag = blocked_tags[i];
-		if(tag) $(".thumb[data-tags~='"+tag+"']").hide();
+		if(tag) {
+			$(".thumb[data-tags~='"+tag+"']").hide();
+			needs_refresh = true;
+		}
 	}
 	// need to trigger a reflow in opera, because opera implements
 	// text-align: justify with element margins and doesn't recalculate
 	// these margins when part of the line disappears...
-	$('#image-list').hide();
-	$('#image-list').show();
+	if(needs_refresh) {
+		$('#image-list').hide();
+		$('#image-list').show();
+	}
 });
 
 function select_blocked_tags() {